Use require('ipc').send to communicate between browser and renderer.

browser/api/atom_api_browser_ipc.cc

@@ -0,0 +1,66 @@
+// Copyright (c) 2013 GitHub, Inc. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "browser/api/atom_api_browser_ipc.h"
+
+#include "base/values.h"
+#include "common/api/api_messages.h"
+#include "common/v8_value_converter_impl.h"
+#include "content/public/browser/render_view_host.h"
+#include "vendor/node/src/node.h"
+#include "vendor/node/src/node_internals.h"
+
+using content::RenderViewHost;
+using content::V8ValueConverter;
+
+namespace atom {
+
+namespace api {
+
+// static
+v8::Handle<v8::Value> BrowserIPC::Send(const v8::Arguments &args) {
+  v8::HandleScope scope;
+
+  if (!args[0]->IsNumber() || !args[1]->IsNumber() || !args[2]->IsString())
+    return node::ThrowTypeError("Bad argument");
+
+  int process_id = args[0]->IntegerValue();
+  int routing_id = args[1]->IntegerValue();
+  std::string channel(*v8::String::Utf8Value(args[2]));
+
+  RenderViewHost* render_view_host(RenderViewHost::FromID(
+      process_id, routing_id));
+  if (!render_view_host)
+    return node::ThrowError("Invalid render view host");
+
+  // Convert Arguments to Array, so we can use V8ValueConverter to convert it
+  // to ListValue.
+  v8::Local<v8::Array> v8_args = v8::Array::New(args.Length() - 3);
+  for (int i = 0; i < args.Length() - 3; ++i)
+    v8_args->Set(i, args[i + 3]);
+
+  scoped_ptr<V8ValueConverter> converter(new V8ValueConverterImpl());
+  scoped_ptr<base::Value> arguments(
+      converter->FromV8Value(v8_args, v8::Context::GetCurrent()));
+
+  DCHECK(arguments && arguments->IsType(base::Value::TYPE_LIST));
+
+  render_view_host->Send(new AtomViewMsg_Message(
+      routing_id,
+      channel,
+      *static_cast<base::ListValue*>(arguments.get())));
+
+  return v8::Undefined();
+}
+
+// static
+void BrowserIPC::Initialize(v8::Handle<v8::Object> target) {
+  node::SetMethod(target, "send", Send);
+}
+
+}  // namespace api
+
+}  // namespace atom
+
+NODE_MODULE(atom_browser_ipc, atom::api::BrowserIPC::Initialize)